Non-volatile magnetoresistive memory in phase separated La${}_{0.325}$Pr${}_{0.300}$Ca${}_{0.375}$MnO${}_3$

Abstract

We have measured magnetic and transport response on the polycrystalline La${}_{5/8-y}$Pr${}_y$Ca${}_{3/8}$MnO${}_3$ ($y=0.30$, average grain size 2 microns) compound. In the temperature range where ferromagnetic metallic and insulating regions coexist we observed a persistent memory of low magnetic fields ($<$ 1 T) which is determined by the actual amount of the ferromagnetic phase. The possibility to manipulate this fraction with relatively small external perturbations is related to the phase separated nature of these manganese oxide based compounds. The colossal magnetoresistance figures obtained (about 80%) are determined by the fraction enlargement mechanism. Self-shielding of the memory to external fields is found under certain described circumstances. We show that this non-volatile memory has multilevel capability associated with different applied low magnetic field values.

4 pages, 2 figures included, to appear in Phys. Rev. B Rapid Comm

References in corpus (11)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Explanation of Giant Cluster Coexistence in Doped Manganites and Other Compounds
• Martensitic accommodation strain and the metal-insulator transition in manganites
• Thermal/Electronic Transport Properties and Two-Phase Mixtures in La_{5/8-x}Pr_{x}Ca_{3/8}MnO_{3}
• The self-organised phases of manganites
• Giant 1/f noise in perovskite manganites: evidence of the percolation threshold
• Multiphase segregation and metal-insulator transition in single crystal La(5/8-y)Pr(y)Ca(3/8)MnO3
• Phase separation, percolation and giant isotope effect in manganites
• Magnetization studies of phase separation in La${}_{0.5}$Ca${}_{0.5}$MnO${}_3$
• Magnetoresistance induced by low-field control of phase separation in La0.5Ca0.5MnO3
• Mesoscopic, Non-equilibrium Fluctuations of Inhomogeneous Electronic States in Manganites

Cited by in corpus (14)

• Novel dynamical effects and persistent memory in phase separated manganites
• Abrupt field-induced transition triggered by magnetocaloric effect in phase-separated manganites
• Magnetocaloric effect in manganites: metamagnetic transitions for magnetic refrigeration
• Simultaneous electric and magnetic field induced nonvolatile memory
• Low temperature irreversibility induced by thermal cycles on two prototypical phase separated manganites
• High resolution determination of ferromagnetic metallic limit in epitaxial La1-xCaxMnO3 films on NdGaO3
• Magnetoresistive memory in phase separated La${}_{0.5}$Ca${}_{0.5}$MnO${}_3$
• Phase diagram of La_{5/8-y}Nd_{y}Ca_{3/8}MnO_3 manganites
• Singularities of Magnetic and Elastic Characteristics of La2/3Ba1/3MnO3: Analysis of Martensitic Kinetics
• Persistent magnetoresistive memory in phase separated manganites
• Hydrostatic pressure to trigger and assist magnetic transitions: baromagnetic refrigeration
• Thermal cycling effects on static and dynamic properties of a phase separated manganite
• Controlling thermal cycling effect in phase separated manganites with high temperature thermal treatments
• Correlation between electrical and magnetic properties of phase separated manganites studied with a General Effective Medium model